clone ~ ~ ~ ~2 ~7 ~2 0 30 0
fill 0 30 0 2 40 2 air replace #vs:fluid
fill 0 30 0 2 40 2 air replace #buttons
fill 0 30 0 2 40 2 air replace light
execute if blocks 0 30 0 2 40 2 0 0 0 all run return 1
fill 0 30 0 2 40 2 air
return fail